FULL PRODUCT VERSION :
1.6.0-b105

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [Version 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
final long stack variable gets corrupted when FileChannel read is interrupted

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
run the main method in provided source code

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
final long variable value remains constant
ACTUAL -
final long variable value gets corrupted during program execution

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.nio.channels.ByteChannel;
import java.security.MessageDigest;
import java.util.Date;
import java.util.Random;

public class CorruptFinalLong {

	private static final Random random = new Random();

	private static void createFileIfNeeded(File file) throws IOException {
		if (!file.exists()) {
			int bufSize = 1000000;
			int rounds = 50;
			System.out.println("writing random file " + file + " of size " + (bufSize * rounds)
					+ " bytes");
			byte[] buf = new byte[bufSize];
			OutputStream out = new BufferedOutputStream(new FileOutputStream(file), 65536);
			for (int i = 0; i < rounds; i++) {
				random.nextBytes(buf);
				out.write(buf);
			}
			out.close();
		}
	}

	public static void main(String[] args) throws Exception {

		System.setErr(System.out);

		String[] props = new String[] { "java.vm.version", "java.vm.name", "sun.os.patch.level",
				"java.runtime.version", "java.vm.version", "os.arch", "os.name",
				"java.specification.version", "java.vm.specification.version",
				"java.specification.vendor", "java.version" };

		for (String p : props) {
			System.out.printf("%30s: %s", p, System.getProperty(p));
			System.out.println();
		}
		System.out.println();

		final File file = new File("random.dat");

		createFileIfNeeded(file);

		final Thread t = Thread.currentThread();

		new Thread(new Runnable() {
			public void run() {
				try {
					Thread.sleep(1000);
					System.out.println("\tabout to interrupt thread '" + t + "' from thread '"
							+ Thread.currentThread() + "'");
					t.interrupt();
				} catch (InterruptedException e) {
					System.out.println("\tinterrupted in thread");
					e.printStackTrace();
				}

			}
		}).start();

		final long start = System.currentTimeMillis();
		System.out.println("started at " + new Date(start) + " (" + start + " ms)");
		System.out.println();

		MessageDigest md = MessageDigest.getInstance("MD5");

		ByteChannel channel = new FileInputStream(file).getChannel();
		try {
			int cap = 10;
			ByteBuffer byteBuffer = ByteBuffer.allocateDirect(cap);
			byte[] local = new byte[cap];
			long lastRead = 0;
			boolean eof = false;
			while (!eof) {
				byteBuffer.rewind();
				int bytesReadThisTime = channel.read(byteBuffer);
				if (bytesReadThisTime == -1) {
					eof = true;
				} else {
					// totalRead += bytesReadThisTime;
					byteBuffer.rewind();
					byteBuffer.get(local, 0, bytesReadThisTime);
					md.update(local, 0, bytesReadThisTime);
					if (System.currentTimeMillis() - lastRead > 1000) {
						lastRead = System.currentTimeMillis();
					}
				}
			}
		} catch (Exception e) {
			if (Thread.interrupted()) {
				System.out.println("\t********* IO was interrupted in thread '"
						+ Thread.currentThread() + "': " + e);
			} else {
				System.out.println("\texception: " + e);
			}
		} finally {
			channel.close();
		}

		System.out.println();
		System.out
				.println("the following line should be identical to the similar one above, since variable 'start' is final:");
		System.out.println("started at " + new Date(start) + " (" + start + " ms)");

	}

}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
none --- aside from reverting to java 5.0